Knob



FIG. 1 is a perspective view of a knob showing my new design;

FIG. 2 is a front elevational view thereof, the undisclosed bottom is not part of the claimed design;

FIG. 3 is a side view thereof, all sides are the same;

FIG. 4 is a perspective view of an alternate embodiment thereof;

FIG. 5 is a first end view thereof, the opposite end being a mirror of the end shown;

FIG. 6 is a front elevational view thereof, the undisclosed bottom is not part of the claimed design; and,

FIG. 7 is a side view thereof, the opposite side being a mirror image of the side shown. 

The ornamental design for a knob, as shown and described. 